Home / 78,822.73-108,774.47-43,013.35

Finding the Fourth Proportional to 78,822.73, 108,774.47 and 43,013.35

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Solution

The fourth proportional to 78,822.73, 108,774.47 and 43,013.35 is: 59,357.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,822.73 : 108,774.47 = 43,013.35 : x
  2. Step 2: Convert to fraction form
    78,822.73/108,774.47 = 43,013.35/x
  3. Step 3: Cross multiply
    78,822.73x = 108,774.47 × 43,013.35
  4. Step 4: Simplify right side
    78,822.73x = 4,678,753,590.24
  5. Step 5: Solve for x
    x = 4,678,753,590.24/78,822.73
  6. Step 6: Final answer
    x = 59,357.93

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.